Fundamentals of UML Diagrams
A diagram is the graphical presentation of a set of elements. UML has a lot of different diagrams. Make sure you can differentiate between different diagrams. Previous sections described UML diagrams; this section elaborates on them using examples.
Using the <> Relationship
This feature encourages re-use. If a use-case needs the functionality of another use-case in order to perform its task, it "uses" the 2nd use case. The relationship is drawn as a line with arrowhead pointing to the use case that is being "used" as shown in Figure 2.5.
Figure 2.5: A <